Dell OptiPlex GX240 User Manual

Page 289

Ounce. A measurement of weight that equals 1/16 of a

Parallel Port

I/O

port on your computer that transfers data eight

bits

at a time. It uses

a 25-pin, female

subminiature-D

connector, typically to connect a printer.

Also referred to as an

LPT port

PBX

Private branch exchange. A telephone system owned and operated by a private
organization rather than the telephone company. This telephone system
switches calls between users in the organization on internal lines while
allowing users to share a certain number of external phone lines. The main
purpose of a PBX is to save the cost of requiring a separate telephone line for
each user.

Personal computer. Commonly used to describe an IBM-compatible
computer, as opposed to an Apple Macintosh computer.

PCI

Peripheral Component Interconnect. A standard for

expansion cards

developed

by Intel Corporation. PCI is a

local bus

that supports 32- and 64-bit data

paths, providing a high-speed data path between the

microprocessor

and

devices

such as video, drives, network, and so on. PCI devices are

PnP

compliant.

PET

Platform event trap. A platform event is an alarm or specified condition that
originates directly from a computer’s

BIOS

or hardware components such as

the

microprocessor

or a

chip

. The event occurs independently of the

system management software and hardware. The platform event trap is a
format used for communicating a platform event in an

SNMP

environment.

PGA

Pin grid array. A type of socket for a computer

chip

. The PGA socket has all

its pins lined up in even rows, as opposed to the

SPGA

socket, which has its

rows staggered.

Pipeline Processing

A method of processing in which a task is performed in stages: the output of
one stage is input to the next stage.This method speeds up processing by
allowing several parts of multiple tasks to be run simultaneously.